When I was working on my long term project to document my visits with my brother Mike, I took my cameras and sometimes, a tripod.  The photo on which this sketch is based, shows me (my hand) helping Mike to click the shutter with the cable release.  I think Mike liked doing this.

Mike Sketch Series: Mike Clicking the Shutter, August 1994
Pencil Sketch
9″x12″ 60# Drawing Paper